Answer:
7/3
Step-by-step explanation:
as it is a reciprocal you must flip the fraction so you can get your answer i hope this helped C:
Negative exponents work like this:

So, in order to evaluate a negative exponent, you simply have to invert the base, and then raise to the positive equivalent of the exponent.
As an example, here are the first three exercises:



You can work out the rest applying this logic.
Answer:
$40
Step-by-step explanation:
12 ÷ 3 = 4
4 × 10 = 40
So, the answer is $40.
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